#include <stdio.h>
int main()
{
    int x = 30;
    printf("x in outer blocker: %d\n", x);
    {
        int x = 77;
        printf("x in inner block: %d\n");
    }
    printf("x in outer block: %d\n", x);
    while(x++ < 33)
    {
        int x = 100;
        x++;
        printf("x in while loop: %d\n", x);
    }
    printf("x in outer block: %d\n", x);
    return 0;
}
